During the pandemic, contactless epidemic-prevention robots used UPIoT IoT SIM cards as their core communication solution, providing stable connectivity and SMS interaction capabilities. Through dedicated IoT networks, sensor data and operating commands could be transmitted in real time in both directions, ensuring reliable and intelligent robot operation. With support for technologies such as Wi-Fi positioning and RFID identification, the robots could autonomously perform personnel positioning, material delivery, area-wide inspection, and automated disinfection, providing a reliable IoT connectivity foundation for efficient contactless epidemic-prevention operations.